1.
Check transponder.
(1)
IGN "ON" & Engine "OFF".
(2)
Neutralize ECM and Register transponder key by scantool.
note
Pin code is required to Neutralize ECM and to Register transponder key
(3)
Are Neutralizing and Registering completed normally ?
 | ▶ Check connectors for looseness, poor connection, bending, corrosion, contamination, deterioration, or damage. Repair or replace as necessary and then go to "Verification of Vehicle Repair" procedure. |
 | ▶ Substitute with a known-good transponder and perform the key teaching precedure. ▶ If the problem is corrected, replace transponder and then go to "Verification of Vehicle Repair" procedure. |
